What is CVE-2026-24883?

CVE-2026-24883 is a low-severity vulnerability in Gnupg, classified under NULL Pointer Dereference. CVSS score: 3.7/10. Published 2026-01-27.

How severe is CVE-2026-24883?

Low severity. CVSS v3 base score is 3.7 out of 10.

NULL pointer dereference in Gnupg

CVE-2026-24883

In GnuPG before 2.5.17, a long signature packet length causes parse_signature to return success with sig->data[] set to a NULL value, leading to a denial of service (application crash).

EPSS: 0.004 (36.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Gnupg — versions 2.5.3
Gpg4win

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

cve@mitre.org (Mailing List, Third Party Advisory)
cve@mitre.org (Product, Patch)

Frequently asked questions

What is CVE-2026-24883?: CVE-2026-24883 is a low-severity vulnerability in Gnupg, classified under NULL Pointer Dereference. CVSS score: 3.7/10. Published 2026-01-27.
How severe is CVE-2026-24883?: Low severity. CVSS v3 base score is 3.7 out of 10.